API CJ-4 represents the latest in a series of engine oil upgrades for heavy-duty diesel engine oils. Development of API CJ-4 was completed in 2006 and finalized as API CJ-4 for licensing on October 15, 2006.

To ensure protection of the aftertreatment devices, chemical limits were set for the first time ever for heavy-duty diesel engine oils. The chemical limits for API CJ-4 target the engine oil's sulfated ash, phosphorus and sulfur content, commonly referred to as SAPS. These chemical limits include the following:

• 1.00 percent maximum sulfated ash (per ASTM D874)

• 0.12 percent maximum phosphorus (per ASTM D4951)

• 0.40 percent maximum sulfur (per ASTM D4951 or ASTM D2622)

In addition to these chemical limits, a volatility limit of 13 percent maximum as determined by the NOACK Volatility Test Method ASTM D5800 has been set for API CJ-4.

SAPS are found in or derived from components (additives and base oils) in engine oil formulations. These various components are used to help provide extended oil drain intervals, base number (BN) retention and to protect against wear, oxidation, corrosion and piston deposits. Although SAPS contribute significant performance benefits, they can cause problems in the 2007-compliant and future engine designs needed to meet the 2010 emission requirements if they are too high.

The most concern for proper functioning of the 2007-compliant emission engine lies in the impact sulfated ash has on aftertreatment devices such as diesel particulate filters.

 

 

MANUFACTURING PROCESS OF ENGINE OIL is not very complicated. For the production, there is need usable and tried a formulation, ingredients ( performance and another additives, base oils,foam agent, pour point depressant, etc. ) and process tank. For ingredients to be used, quantities to be used and ingredients usage rankings, you should look into this formulation and manufacturing process. Therefore, formulation and productıon process of MULTIGRADE, MONOGRADE,SYNTHETIC,SEMI SYNTHETIC MOTOR OIL are important. If you have not a good formulation, you cannot make healthy and  efficient production of any lubricating oils.
 

 

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